(1)a faint constellation in the southern hemisphere near Hydra and Corvus
(2)ウミヘビ座と烏座の近くの南半球のかすかな星座
(3)a bowl-shaped depression formed by the impact of a meteorite or bomb
(4)隕石または爆弾の衝撃で形成されるお椀型のくぼみ